Two more treatments done for a total of eight. Since beginning treatments in February, I'm very well pleased. Results are consistent with strong relief in the beginning that tapers off slowly through week 5 and done by the end of week 6. And way done by week 7. The treatment today was near the end of week 7 and it sure feels good to have zero pain and a nicely toasted back. I think we would do well to play with a shorter treatment intervals.
The recent treatments are all emu oil with the capsaicin initially dissolved in ethanol. For the next batches I'll lose the alcohol because it seems to greatly increase the volatility of the capsaicin causing more powerful fumes. Not comfortable for my wife doing the application.
I think before long I'll try DMSO to learn if it may carry the capsaicin deeper. That's probably the key for best mileage.
I won't have any updated info or opinions from my doctor until January.